Tear-Away Topology Views

ABSTRACT

Enabling users to select a subset of elements represented by a rendered topology view, and in response, a new view comprising the selected elements is automatically created. Preferred embodiments render this subset view, referred to herein as a “tear-away view”, alongside the topology view from which the elements were selected, thereby enabling the user to focus on the selected elements in context of the bigger picture. An active correlation is preferably maintained between the views, such that various updates to one view are also reflected in the other view. Preferred embodiments automatically create a new data model underlying the tear-away view, and in one aspect, this data model and/or tear-away view may be persisted.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to computer software, and deals moreparticularly with enabling users to focus on a selectable subset ofelements represented by a rendered topology view.

2. Description of the Related Art

The term “topology” is commonly used to refer to an arrangement of nodesin a computing system, as well as relationships among those nodes. A“topology view” is used to view this arrangement of nodes and to displaytheir interrelationships. Users typically have the ability to interactwith this view to select nodes and/or links representing theinterrelationships, and to query information on a selected element(i.e., node or link) Since a topology view offers a “top-down” view of asystem, users also typically have the capability to “drill down” fromone level to another (e.g., to obtain more detailed information).

The present invention addresses limitations of existing topology views.

SUMMARY OF THE INVENTION

The present invention provides techniques for enabling users to select asubset of elements represented by a rendered topology view, and inresponse, a new view comprising the selected elements is automaticallycreated. Preferred embodiments render this subset view, referred toherein as a “tear-away view”, alongside the topology view from which theelements were selected, thereby enabling the user to focus on theselected elements in context of the bigger picture. An activecorrelation is preferably maintained between the views, such thatvarious updates to one view are also reflected in the other view.Preferred embodiments automatically create a new data model underlyingthe tear-away view, and in one aspect, this data model and/or tear-awayview may be persisted.

The present invention will now be described with reference to thefollowing drawings, in which like reference numbers denote the sameelement throughout.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 illustrates a sample topology view of the prior art;

FIG. 2 illustrates a sample zoomed-in view of a portion of a topology,according to the prior art;

FIG. 3A provides an example of a torn-away topology view created from alarger topology view, according to preferred embodiments of the presentinvention, and FIG. 3B emphasizes a portion of detail from FIG. 3A;

FIG. 4 provides another example of a torn-away topology view, accordingto preferred embodiments of the present invention, and illustrates usingzoom to view additional details; and

FIG. 5 depicts a flowchart illustrating logic that may be used whenimplementing preferred embodiments of the present invention.

DESCRIPTION OF PREFERRED EMBODIMENTS

The present invention provides techniques that enable users to buildwhat are referred to herein as “tear-away” topology views and tointeract with those views. A tear-away topology view comprises a subsetof elements from a main topology view. Preferred embodiments enable eachindividual user (such as a systems administrator) to select whichelements from the main topology view should be included in that user'stear-away view or views. Preferably, these tear-away views areinteractive views where actions performed on a tear-away view can becorrelated to the main topology view; various actions performed on themain topology view may also be reflected on corresponding elements ofthe tear-away topology view. In one aspect, the tear-away topologies maybe persisted or exported.

Drawbacks of prior art topology views will now be described.

FIG. 1 illustrates a sample topology view 100 of the prior art. As canbe seen by inspection, this view 100 represents a large number of nodesand relationships. In the figures herein, nodes are depicted as squareicons and relationships are shown as lines or links between those icons(although this is by way of illustration and not of limitation).

When the number of nodes and links displayed within a topology viewexceeds a relatively small number, a user's ability to discern usefulinformation from the view is reduced. In fact, the number of nodes andlinks in a topology view may become overwhelming. This is illustrated bythe sample view 100 in FIG. 1, where nodes and links for two networks110, 120 are depicted; in actual practice, a topology view of this typemight contain even more nodes and links

FIG. 2 illustrates a sample “zoomed-in” or “zoomed” view 200 of atopology according to the prior art. (The view 100 in FIG. 1 may bereferred to as a “zoomed-out” view, by contrast.) A topology view mayallow the user to zoom in to better focus his or her attention on asubset of the overall topology. In this representative zoomed-in view200, the nodes are no longer shown as square icons. Instead, this samplezoomed-in view 200 provides computer-styled icons to represent nodes.Reference number 210 generally indicates sample network addresses whichare rendered for several of the nodes. In actual practice, networkaddresses (or other node-specific characteristics) are often depictedalongside every one of the nodes in a zoomed-in view of this type.However, for ease of illustration, network addresses have been omittedfrom FIG. 2 for the remaining nodes in the sample view 200.

As illustrated by the sample view in FIG. 1 and the sample zoomed viewin FIG. 2 (and in particular, the portion thereof where sample networkaddresses have been provided), the user's ability to view a distinct setof nodes or to work with a distinct set of nodes (e.g., by clicking onthe node's icon or its links, thereby requesting more information) maybecome futile as the system grows beyond a relatively small size. Todeal with this situation using prior art techniques, the user may beforced to hide a series of nodes within a view—for example, byindividually identifying nodes to be suppressed from the view or by useof a software filter that omits node representations based oncharacteristics specified for the filter. Or, the user may try toisolate the nodes of interest by zooming in to a sufficiently-smallsection of the view, and then trying to ignore all other extraneousdata. These approaches have a number of drawbacks, including aninability to maintain an overall “big picture” perspective, decreaseduser productivity, user confusion, and resulting error-prone operation.

No techniques are known to the present inventor that enable “breakingdown” a topology view into smaller views (referred to equivalentlyherein as tear-away views or “sub-topology views”), where those smallerviews present a user-selectable subset of the overall topologyview—while, at the same time, allowing that user to continue viewing theentire “big picture”.

Furthermore, although prior art topology views support navigation amonglevels (as in the drill-down approach mentioned earlier), no techniquesare known to the present inventor to build or tear away a subset of thetopology view that displays data of interest to this user, as determinedby this user.

Preferred embodiments address these and other limitations of prior arttopology views through user-selectable tear-away topology views. Using apreferred embodiment of the present invention, a user can select one ormore elements rendered in a main topology view and then drag and dropthe selected elements outside the main topology view, resulting increation of a separate tear-away topology view. Individual users cantherefore select elements within a topology view that are specific totheir needs and view that selected subset, while at the same timeviewing the overall topology of the entire system. Preferred embodimentsalso maintain active correlations, or communications, between nodes andlinks of the tear-away views and their counterparts in the main topologyview (as discussed in more detail below). In addition, in an optionalaspect, embodiments of the present invention enable users to exporttear-away views and persist those as separate topology views,effectively allowing them to create their own user-specific, reusablesub-topology views of the system.

Referring now to FIG. 3A, an example is provided of a sample tear-awaytopology view that might be created by a user of an embodiment of thepresent invention. One manner in which a user may create this tear-awaytopology view will now be described. A boundary 330 is visually depictedin FIG. 3A as a dashed rectangle (by way of example only) that surroundsa topology view 340 (comprising, in this example, a view of a firstnetwork 320 and a second network 321). From this rendered topology view,a user selects one or more nodes and/or links—for example, bypositioning a pointing cursor over the rendering thereof and thendepressing a selection mechanism such as the left mouse button. Then,the user continues to depress the selection mechanism while dragging thepointing cursor (or similar indicator) to a point outside the boundaryarea of the main topology view. The user then releases the pointingcursor, and in response, a new tear-away view (see reference number 310)is created, containing the selected nodes and/or links Preferably, thistear-away view is rendered within the same view or window as the maintopology view, as illustrated in FIG. 3A by reference numbers 310, 340.

In one approach, an implementation of the present invention allows theuser to select nodes and links separately. In an alternative approach,selection of nodes may be used as a signal to automatically select linksthat reach those nodes. In yet another alternative approach, selectionof nodes may signal that links should be automatically selected only ifthey connect selected nodes. An implementation of the present inventionmay support one or more of these approaches (and optionally, users maybe allowed to selectively choose among the approaches when more than oneis available, for example by setting a configuration option or byactivating a dynamic selection means on a graphical display).

In the example of FIG. 3A, the tear-away topology view 310 shows thatthe user has selected a relatively small subset of the nodes/links frommain topology view 340. In practice, the interests of the particularuser will determine how many nodes/links, and which ones, are selected.As one example, the user might select nodes surrounding a node or linkthat has been visually distinguished in the main topology view asexperiencing performance problems. Note that the sample tear-awaytopology view 310 includes two “caution” or “warning” symbols 311, 312.While it is difficult to view warning symbols or other problemindicators in the crowded topology view 340 of FIG. 3A, FIG. 3B providesan “exploded” view 360 of a portion of detail from FIG. 3A, where thatportion has been surrounded by a rectangle 350. As can be seen inexploded view 360, two warning indicators are present in this portion ofthe main topology view. The user has therefore selected a subset of thesurrounding elements for rendering in tear-away topology view 310,allowing the user to focus on those selected elements.

Note that FIGS. 3A and 3B also illustrate an optional enhancement,whereby the rendering within main topology view 340 of the nodes thathave been selected and used for creating the tear-away topology view 310is visually distinct from the non-selected nodes. This can best be seenin the exploded portion 360, where the 6 selected nodes are depicted ashollow icons instead of the solid icons used for the remainder of thenodes. (See also FIG. 1, where these same nodes 6 nodes have not yetbeen selected in the main topology view 100 and have therefore not beenvisually distinguished.)

Preferred embodiments maintain active correlations between the tear-awaytopology view and the main topology view, as noted earlier. For example,selecting an element in a tear-away view preferably causes acorresponding selection of that item within the main topology view(thereby allowing the user to see how the views are related). Similarly,various actions performed against an element in one of the topologyviews may be reflected in the rendering of the corresponding element inthe other topology view. For example, if the user selects a link in thetear-away view and requests that the link be disabled, or selects aparticular device and then requests stopping or starting that device,the rendering of that link or device may change in the tear-awaytopology view. Thus, the main topology view is preferably revised, asnecessary, such that it remains aligned with that element's rendering inthe tear-away view. As another example, if the user rearranges nodes inthe tear-away topology view, the corresponding depictions in the maintopology view are preferably rearranged in an analogous manner. As yetanother example, communication between the views may be triggeredresponsive to events that impact a view. Suppose a node in a networkfails, thereby causing its visual representation in the main topologyview to be changed to a red icon. If the failing node is also present ina tear-away topology view, this node-failure information may becommunicated to the tear-away topology view, causing the node to also bevisually flagged in that view.

The correlation between views may be disabled, at least for someactions, thereby enabling various actions that are performed against aview to be applied independently to one view or the other (and thedisabling may optionally be user-selectable). As an example, the usermay select to filter the tear-away view to show only nodes with aparticular status, such as having an icon color of yellow (which mayindicate a warning or caution status), without affecting the maintopology view. In this manner, the user can view a subset of the dataaccording to specific criteria while, at the same time, activelymonitoring the larger main topology view. As another example, the usermight select to temporarily disable the correlation to manipulateselected ones of the nodes in the tear-away topology view, and thenrestore the correlation to allow the result to be reflected in the maintopology view. Provision may be made for disabling the correlation as toall elements of the tear-away topology view, or alternatively, forselected ones of those elements.

In another aspect, creating a tear-away topology preferablyautomatically generates a corresponding data model that contains theselected nodes/links This data model remembers which elements are to beincluded, along with the interrelationships. The model also preferablyremembers the visual alignment of those elements, such that the samealignment will be used when the tear-away topology is reused (e.g., ifthe user requests to re-display a previously-defined tear-away topologyview). The model preferably associates a user-selected name oridentifier with the particular tear-away topology view. (This data modelis also preferably used when correlating actions between the tear-awaytopology view and the main topology view.)

In an optional aspect, the data model can be leveraged to enable usersto export or persist the tear-away topology view(s) they have created.Users may build one or more tear-away topology views, based on theirbusiness needs or other criteria, in order to establish views forspecific functions. An example is provided in FIG. 4, where the user hasselected a subset of the elements from main topology view 420 forrendering in tear-away topology view 410. In this example, the user hasfurther zoomed in on the tear-away topology view, enabling certaindetails of each node to be rendered. Note that in this example, thezooming action on view 410 is not correlated to view 420, and view 420therefore remains in its original non-zoomed state. Suppose the elementsin this sample tear-away topology view 410 are nodes that are used whenperforming a nightly build operation. The systems administrator maytherefore wish to view operations of those nodes each night. Bypersisting the tear-away topology view 410, the administrator canquickly and efficiently request the detailed and focused view of thenodes of interest, without having to search for and select those nodesfrom the main topology view each night.

In the prior art, creation of a new topology view typically involvesaccessing a database (or a plurality of databases) to obtain informationto be used in the rendering. Execution of complex algorithms may also berequired to build the topology view. By contrast, embodiments of thepresent invention provide for rapid development of new views, as hasbeen demonstrated with reference to the sample tear-away topology viewsin FIGS. 3A and 4.

In addition, embodiments of the present invention may optionally allow auser to reuse persisted tear-away topology views as a basis for definingnew tear-away topology views. For example, suppose the user haspersisted the tear-away topology view shown at 410 in FIG. 4, and nowwishes to view and interact with some subset of those elements. The view410 may be rendered, and the user may then remove selected ones of theelements from that view, creating a new data model (preferably with anew identifier).

In the prior art, it is common for access permissions to be set on aper-resource basis. For example, access to information about individualnodes or links may be restricted to designated users or user groups.When a user wishes to interact with resources from a topology view ofthe type depicted in FIG. 1, this type of one-at-a-time access controlcan be problematic. Embodiments of the present invention may be used toprovide more efficient, easier-to-use access controls. Upon defining thecollection of resources for a particular tear-away topology view, accesscontrol information may be established in terms of that view (and thedata model associated with the tear-away topology view may be augmentedwith access-control information), thereby enabling a user to access theentire collection of resources with one access verification.

Referring now to FIG. 5, a flowchart is depicted which illustrates logicthat may be used when implementing preferred embodiments of the presentinvention, as will now be described. Beginning at Block 500, a maintopology view is rendered, preferably using prior art techniques. (As anexample, a prior art product known as “ILOG® Jviews” provides a graphicstoolkit having components with which various types of graphs and charts,including topology charts, can be created. “ILOG” is a registeredtrademark of ILOG Corporation France, and information about Jviews maybe found on the corporate Web site.)

From this rendered topology view, the user selects one or more elements(Block 510). Preferably, prior art selection techniques are leveraged,including the ability to select multiple elements (e.g., by depressingthe “Control” or “Shift” key on a keyboard and then depressing the leftmouse button over icons associated with each element of interest). Oncethe elements of interest have been selected, the user drags thoseelements across a boundary (Block 520). A visual boundary is illustratedin FIGS. 3A, 3B, and 4, as a dashed rectangle. Other approaches todefining a boundary may be used without deviating from the scope of thepresent invention. As one example, an invisible boundary may be used,and audio means may be activated to signal the user that the boundaryhas been crossed. As another example, the boundary may be defined as theoutermost perimeter of elements in the rendered topology view, such thatdragging elements beyond this perimeter indicates that the boundary hasbeen crossed.

When the user drops the selected elements outside the boundary (Block530), preferred embodiments interpret this as an indication that atear-away topology view is to be created using those elements. Block 540therefore accesses the topology model of the main topology view, andthis topology model is searched (Block 550) for each of the selectedelements. Upon locating the model information for each element, a newmodel is created (Block 560) and populated (Block 570) using thatinformation. As indicated in Block 580, this new model is then used forthe tear-away view.

It should be noted that techniques other than drag-and-drop may be usedfor positioning the selected elements outside the main topology view,thereby indicating that a tear-away topology is to be created, withoutdeviating from the scope of the present invention. As one example, theuser may touch a light pen to a rendering to indicate a group ofelements, and may then activate a graphical user interface control, suchas a graphical button, which is operably associated with a “create newtear-away topology” function.

A user may optionally create more than one tear-away view from aparticular main topology view. Embodiments of the present invention maychoose to render these multiple tear-away views separately (using, forexample, views as shown in FIGS. 3A and 4 to render two differenttear-away topology views). Or, alternatively, multiple tear-awaytopology views may be rendered within a single overall view, using (forexample) a tiled or cascaded approach.

Preferred embodiments have been illustrated herein with reference totopology views depicting components of a computing network. This is byway of illustration and not of limitation. Embodiments of the presentinvention may be used advantageously in other scenarios, including (butnot limited to) a topology view of internal components of a device orelements comprising other complex systems.

As has been demonstrated, the present invention provides advantageoustechniques that address a number of drawbacks of the prior art. Benefitsinclude (but are not limited to) users' ability to focus on specificelements or areas within a topology view; users' ability to createsub-topology views while, at the same time, maintaining a big-pictureview of the overall topology; intuitive techniques such as drag-and-dropfor creating tear-away views; and an ability to correlate actionsbetween views.

As will be appreciated by one of skill in the art, embodiments of thepresent invention may be provided as methods, systems, or computerprogram products comprising computer-readable program code. Accordingly,the present invention may take the form of an entirely hardwareembodiment, an entirely software embodiment, or an embodiment combiningsoftware and hardware aspects. The computer program products maybeembodied on one or more computer-usable storage media (including, butnot limited to, disk storage, CD-ROM, optical storage, and so forth)having computer-readable program code embodied therein.

When implemented by computer-readable program code, the instructionscontained therein may be provided to a processor of a general purposecomputer, special purpose computer, embedded processor, or otherprogrammable data processing apparatus to produce a machine, such thatthe instructions, which execute via the processor of the computer orother programmable data processing apparatus, create means forimplementing preferred embodiments.

These computer-readable program code instructions may also be stored ina computer-readable memory that can direct a computer or otherprogrammable data processing apparatus to function in a particularmanner, such that the instructions stored in the computer-readablememory produce an article of manufacture including instruction meanswhich implement preferred embodiments.

The computer-readable program code instructions may also be loaded ontoa computer or other programmable data processing apparatus to cause aseries of operational steps to be performed on the computer or otherprogrammable apparatus to produce a computer-implemented method suchthat the instructions which execute on the computer or otherprogrammable apparatus provide steps for implementing preferredembodiments.

While preferred embodiments of the present invention have beendescribed, additional variations and modifications in those embodimentsmay occur to those skilled in the art once they learn of the basicinventive concepts. Therefore, it is intended that the appended claimsshall be construed to include preferred embodiments and all suchvariations and modifications as fall within the spirit and scope of theinvention.

What is claimed is:
 1. A system, comprising: a computer comprising aprocessor; and instructions which are executable, using the processor,to implement functions comprising: rendering a first topology viewcomprising a plurality of elements, the view corresponding to anunderlying first data model for the elements, the first data modelincluding relationship information defining relationships among theelements; detecting a selection of a plurality of the rendered elements;detecting a dragging of the selected elements across a defined tear-awaytopology boundary, the tear-away topology boundary defined to signalthat elements dragged across the boundary are to be used, when dropped,for creating a second topology view in association with the firsttopology view; and creating, responsive to detecting a drop of thedragged elements after detecting the signal that the elements weredragged across the defined tear-away topology boundary, the secondtopology view, the second topology view having a correlation with thefirst topology view, and a second data model that underlies the selectedelements, wherein: the second topology view comprises a rendered copy ofthe selected elements, and the second data model comprises informationthat is copied, for each of the selected elements, from correspondinginformation in the first data model; the rendered copy maintains spatialpositioning of, and relationships among, the selected elements asrendered in the first topology view; and provided that the correlationis active, an update to the rendered copy of the selected elements inthe second topology view automatically causes a corresponding update tothe selected elements in the first topology view, as well ascorresponding updates to the second data model and the first data model,and an update to the selected elements in the first topology viewautomatically causes a corresponding update to the rendered copy of theselected elements in the second topology view, as well as correspondingupdates to the first data model and the second data model.
 2. The systemaccording to claim 1, wherein the boundary surrounds the rendered firsttopology view.
 3. The system according to claim 1, wherein the boundaryis a visual boundary.
 4. The system according to claim 1, wherein theboundary is an invisible boundary.
 5. The system according to claim 4,wherein the functions further comprise sounding an audible indicatorwhen the boundary is crossed.
 6. The system according to claim 1,wherein the boundary is an outermost perimeter of the elements in therendered first topology view.
 7. The system according to claim 1,wherein the second topology view is rendered alongside the renderedfirst topology view.
 8. The system according to claim 1, wherein theelements represent nodes of a computing network and links among thenodes.
 9. The system according to claim 1, wherein the functions furthercomprise establishing access control rights to each individual one ofthe selected elements in the first topology view by establishing asingle access control right to a collection that represents the selectedelements in the second topology view.
 10. The system according to claim1, wherein the detecting the dragging is replaced by detecting apositioning of the selected elements outside the boundary, and whereinthe creating then operates responsive to the detecting the positioning.11. A computer program product, the computer program product comprising:a computer-readable storage medium having computer readable program codeembodied therein, the computer-readable program code configured for:rendering a first topology view comprising a plurality of elements;detecting a selection of a plurality of the rendered elements; detectinga dragging of the selected elements across a defined tear-away topologyboundary, the tear-away topology boundary defined to signal thatelements dragged across the boundary are to be used, when dropped, forcreating a second topology view in association with the first topologyview; creating, responsive to detecting a drop of the dragged elementsafter detecting the signal that the elements were dragged across thedefined tear-away topology boundary, the second topology view inassociation with the first topology view, wherein: the second topologyview comprises a copy of the selected elements; the copy maintainsspatial positioning of, and relationships among, the selected elementsas rendered in the first topology view; and providing a correlationbetween the selected elements in the first topology view and the copy ofthe selected elements in the second topology view, such that when thecorrelation is active, an update to the copy of the selected elements inthe second topology view automatically causes a corresponding update tothe selected elements in the first topology view and an update to theselected elements in the first topology view automatically causes acorresponding update to the copy of the selected elements in the secondtopology view; rendering the second topology view; and using thecorrelation to manage updating in the second topology view, comprising:disabling the correlation prior to performing an update to the copy ofthe selected elements in the second rendered topology view; restoringthe correlation following the update; and automatically revising theselected elements in the first rendered topology view, responsive to therestoring, such that the first rendered topology view also reflects theupdate.
 12. The computer program product according to claim 11, furthercomprising persisting the second topology view.
 13. The computer programproduct according to claim 11, wherein the creating further comprises:locating, in a topology data model corresponding to the first renderedtopology view, information for each of the selected elements; creating anew topology data model corresponding to the second rendered topologyview; populating the new topology data model with the locatedinformation; and persisting the populated new topology data model. 14.The computer program product according to claim 11, further comprisingusing the method to create a third topology view from the secondrendered topology view, wherein: the third topology view comprises acopy of a subset of the selected elements; the detecting a selectiondetects a selection of the subset, from the copy of the selectedelements in the second rendered topology view; the detecting a draggingdetects a dragging of the subset across a second boundary, the secondboundary defined to signal that subsets dragged across the secondboundary are to be used, when dropped, for creating the third topologyview in association with the second topology view; the creating createsthe third topology view in association with the second topology view,responsive to detecting a drop of the subset after detecting the signalof the dragging across the second boundary, the created third topologyview maintaining the spatial positioning of, and relationships among,the subset as rendered in the second topology view and providing thecorrelation between the subset in the second topology view and the copyof the subset in the third topology view.
 15. The computer programproduct according to claim 12, further comprising: detecting asubsequent rendering of the first topology view, responsive to a requestfor the subsequent rendering; responsive to the request for thesubsequent rendering, enabling the persisted second topology view to berendered, from information stored by the persisting, in association withthe subsequent rendering of the first topology view.
 16. The computerprogram product according to claim 11, further comprising altering avisual representation of the selected elements within the first renderedtopology view, responsive to the creating.
 17. A computer programproduct, the computer program product comprising: a computer-readablestorage medium having computer readable program code embodied therein,the computer-readable program code configured for: rendering a firsttopology view comprising a plurality of elements; detecting a selectionof a plurality of the rendered elements; detecting a dragging of theselected elements across a defined tear-away topology boundary, thetear-away topology boundary defined to signal that elements draggedacross the boundary are to be used, when dropped, for creating a secondtopology view in association with the first topology view; creating,responsive to detecting a drop of the dragged elements after detectingthe signal that the elements were dragged across the defined tear-awaytopology boundary, the second topology view in association with thefirst topology view, wherein: the second topology view comprises a copyof the selected elements; the copy maintains spatial positioning of, andrelationships among, the selected elements as rendered in the firsttopology view; and providing a correlation between the selected elementsin the first topology view and the copy of the selected elements in thesecond topology view, such that when the correlation is active, anupdate to the copy of the selected elements in the second topology viewautomatically causes a corresponding update to the selected elements inthe first topology view and an update to the selected elements in thefirst topology view automatically causes a corresponding update to thecopy of the selected elements in the second topology view; rendering thesecond topology view; and using the correlation to manage updating inthe second topology view, comprising: disabling the correlation for thecopy of a particular one of the elements, prior to initiating an updateaffecting the particular element using the second rendered topologyview; restoring the correlation following the update; and automaticallyrevising a visual representation of the particular element in the firstrendered topology view, responsive to the restoring, such that the firstrendered topology view also reflects the update.
 18. The computerprogram product according to claim 17, wherein the computer-readableprogram code is further configured for sounding an audible indicatorwhen the boundary is crossed.
 19. The computer program product accordingto claim 17, wherein the boundary is an outermost perimeter of theelements in the rendered first topology view.
 20. The computer programproduct according to claim 17, wherein the computer-readable programcode is further configured for establishing access control rights toeach individual one of the selected elements in the first topology viewby establishing a single access control right to a collection thatrepresents the selected elements in the second topology view.